For Samsung devices, "Download Mode" (or Odin Mode) is primarily used for flashing firmware rather than a standard factory reset
: They are user-friendly but often require a paid license and carry risks of bricking the device if the wrong model is selected. The Standard Alternative: Recovery Mode samsung download mode factory reset tool
—a specialized Samsung state for flashing firmware and performing advanced repairs Essential Tools for Factory Resetting via Download Mode For Samsung devices, "Download Mode" (or Odin Mode)
: Works across almost all Galaxy models (S-series, A-series, M-series) using standard Samsung USB Drivers. Cons & Risks Communicates with a Samsung device in Download Mode
If you need to such a tool yourself, study the Odin protocol (reverse-engineered) and implement the ERASE command on the userdata partition — but modern Samsung bootloaders require signed authentication.